Endeavour and six astronauts rocketed into orbit Monday on what's expected to be the last nighttime launch for the shuttle program, hauling a new room and observation deck for the International Space Station. The space shuttle took flight before dawn, igniting the sky with a brilliant flash seen for miles around. The weather cooperated at the last minute. Endeavour's destination was soaring over Romania at the time of liftoff. The shuttle is set to arrive at the station early Wednesday. Zamka and his crew will deliver and install Tranquility, a new room that will eventually house life-support equipment, exercise machines and a toilet, as well as a seven-windowed dome. The lookout has the biggest window ever sent into space, a circle 31 inches across.